accidentally converted vm to template

[A G]

Hello,

I am new to proxmox an accidentally converted a vm to a template. After searching on the internet i found a solution. The solution is to clone the vm and install it again, Only my vm is 2 TB big and i only have 1 TB of free space left. Does anyone have a solution for this problem? Is there no way to revert the template to a normal vm?

Thanks in advance

 

[mir]

open the conf file for the vm found under /etc/pve/qemu-server and delete the line 'template: 1'.

 

[A G]

Thank you very much!! it worked

 

[wbumiller]

Note that the template creation will also have renamed your disks to reflect the fact that they may become the base volume for new VMs. You should undo this change as well, but this is a bit more involved and depends on the storage. (Usually the name changes from eg. `vm-100-disk-1` to `base-100-disk-1`.)
You can take a look at the "Rename/Move the disk" step in the "Moving disk image from one KVM machine to another"[1] wiki page.
Be careful if you do this, and note that the VM configuration needs to be updated as well.

[1] https://pve.proxmox.com/wiki/Moving_disk_image_from_one_KVM_machine_to_another

 

[psuter]

just ran into that myself. in my setup the image was an LVM volume and i had to set it to read-writeable again after removing the template keyword from the config:

lvchange -p rw /dev/vmdisks/base-108-disk-0

cheers
Pascal

 

[hyperbola]

open the conf file for the vm found under /etc/pve/qemu-server and delete the line 'template: 1'.

This works. Noted that a # sign at the beginning of line stands for comment.

 

[ashranpewter]

For btrfs this worked for me to make my snapshot rw. It creates a .raw file on the file system and I guess it's a snapshot that changes to base- instead of vm-

btrfs property set -ts /path/to/snapshot ro false

also reference here: https://unix.stackexchange.com/questions/149932/how-to-make-a-btrfs-snapshot-writable

Glad I didn't care that much about losing that data since I had working backups! USE BACKUPS!

 

[roycordero]

open the conf file for the vm found under /etc/pve/qemu-server and delete the line 'template: 1'.

thanks, I have done this and exited the template interface and returned to the vm interface but when it starts it does nothing and this error appears in the log

kvm: -device scsi-hd,bus=scsihw0.0,channel=0,scsi-id=0,lun=0,drive=drive-scsi0,id=scsi0,bootindex=100: The device is not writable: Permission denied
TASK ERROR: start failed: QEMU exited with code 1

I don't know how it was before but now in 100.conf I get something like this
scsi0: local-lvm:base-100-disk-0,cache=writethrough,size=25G

and I have changed it to several example forms
scsi0: local-lvm:vm-100-disk-0,cache=writethrough,size=25G
scsi0: local-lvm:vm-100-disk-1,cache=writethrough,size=25G
and dont work

Psuter said:

just ran into that myself. in my setup the image was an LVM volume and i had to set it to read-writeable again after removing the template keyword from the config:

lvchange -p rw /dev/vmdisks/base-108-disk-0

I think I'm having problems with permissions too... but my vm was in the local-lvm (thin)

 

[anpjohn]

just ran into that myself. in my setup the image was an LVM volume and i had to set it to read-writeable again after removing the template keyword from the config:

lvchange -p rw /dev/vmdisks/base-108-disk-0

cheers
Pascal

I spent about 3 hours trying to find this command. You are the reason I was able to sleep last night!